Polycom 550 - Manual (Page 65)

Using the Basic Features of Your SoundPoint IP 550 Phone
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A stutter dial tone in place of normal dial tone is used to indicate that one or
more voice messages are waiting at the message center.
To listen to voice messages:
1. Press .
2. Follow voice or visual prompts on the graphic display to retrieve your
messages.
If multiple lines are configured on your phone, select from which line
messages are to be retrieved.
Note Voice Mail is an optional feature configured on the call server and may not be
supported on your particular system. For more information, contact your system
administrator.
Screen options may vary with your application. Voice Mail may be accessible with a
single key press. Contact your system administrator about this option.